Clutch for planters.



t PATBNTED JULY 28, 1903.

' w. L. BBALL.. CLUTCH PoR PLANT- Em -APPLIOATION FILED, MAR.. 18, 1903.

NO MODEL [NVE/VTO/ e' WM .L M l gym @nrw/fn I l Hal/41707116).

Il ll Il l! ll n the sleeve a stationary.

UNITED STATES V Patented July 28, 1903. l

PATENT OFFICE.

WILLIAM L. BEALL, OF ALBION, MICHIGAN, ASSIGNOR TO GALE MANUFAC- TURING COMPANY, OF ALBION, MICHIGAN.

CLUTCH FOR PLANTERs.

SPECIFICATION forming part of Letters Patent No. 734,502, dated July 28, 1903.

Application filed March 18, 1903. Serial No. 148,429. (No model.)

To all whom tm/wy concern/.-

Be it knownthat I, WILLIAM L. BEALL, a citizen ot the United States, residing at Albion, in the county of Calhoun and State of- 5 Michigan, have invented cert-ain new and useful Improvements in Clutches for Planters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the ro art to which it appertains to make and use the same.

My present invention relates to clutches,

and more particularlv to that class of clutches which are used for the purpose of bringing i5 certain mechanical parts into action for a limited period whereby a shaft is brought into action for one revolution or a partof such revolution.

In the accompanying drawings. I have 2o shown such a clutch applied to the seedershaft of a planter; and my invention is disclosed in the following description and claims.

In the drawings, Figure 1 is a plan view of my improved clutch with only such parts con-- z5 nected therewith as are required to show the mode of operation ofthe same. Fig. 2 is a partial sectional view, and Fig. 3 is a detai View, of the main clutch member.

In the ligures,A is the seeder-shaft, in which 3o is mounted a sleeve a, having the clutch box or casing a integral therewith or secured thereto. This box or casing ct is secured to some stationary part of the planter-frameby the bracket a2, which holds the box or casing and The sleeve a is not secured to the shaft, the said shaft being free to rotate within the same. The box or casing is provided on its outer face with afnotch or recess a3. Within said box or casing a sleeve b is secured to the shaft A to rotate therewith. To the sleeve b is pivoted the dog or latch b', and this dog` or latch is held against the outer face of the box or casing or within the notch or recess in such face by a spring b2. A sleeve C is also loosely mounted on the shaft A in close relation with the sleeve b and dog b'. This sleeve is provided Awith ,one or more sprocket-wheels cpc and with a disk c2, having a ratcheted flange c3. This 5o ratchet-flange c3 extends toward the outer face of the box or casing a', with'a short space Vbetween them, and this relation between the coiled spring d. The dog b is provided with a projection to engage the teeth of the ratchet when it is moved out of the recess a3 of the box or casing and also on its opposite side with an arm or projection b2', by which thev dog may be forced out of the recess a3 and into engagement with the ratchet. 6a

A rock-shaft E is located parallel with the shaft A, and this rock'shaft is provided with a cam-arm e. This arm is so located and its cam-face so constructed that when the arm e is turned toward the clutch it will engage the arm or projection b21 of the dog and force the same toward the ratchet and cause it to en*- gage with the teeth of the same. This rockshaft is provided with crank-arms e c', which are connected with the forked levers of any 7o ordinary check-row planter, which levers are moved or caused to be moved by the ordinary knotted cord or wire.

G is a sprocket-chain operated by some moving part of the planter to give a constant rotation to the sleeve C and `the ratchet-disk.

In operation the sleeve C and the ratchet is given a constant rotation. At the desired intervals ot time the rock-shaft E is turned to force the arm c against the arm or projec- 8o tion b2 of the dog,r b".. The -cam-face of the arm e forces the dog out of the recess a3 and into engagement with the teeth ofthe ratchet- The ratchet being in motion carries the dog past the recess a3. As the dog is pivoted to the sleeve b and the sleeve is secured to the shaft A, this shaft is moved by the ratchet until the dog b again reaches the recess as, when the spring withdraws it from engagement with the ratchetand the movement of 9o the shaft A ceases. v

The outer face of the box or casing when unbroken holds the dog in engagement with the ratchet. The shaft may be given. less than a single rot-ation byproviding the outer face of the box or casing with a recess to receive the dog b at the point or points desired and providing means adjacent thereto for forcing it out into engagement with the ratchet.

I do not limit myself to the shaftE and arm @for throwing the dog b into engagement IOO with the ratchet, as other means may be employed to eiect this.

What I claim, and desire to secure by Letters Patent, is-

l. A clutch of the class described, comprising the dog, the ratchet, a surface for engaging the dog and holding it in engagement I with the ratchet for a space not exceeding 3. A clutch comprising the ratchet., a box or casing having its outer face parallel with the ratchet, and having a notch in said face, the dog, means for throwing the dog into engagement with the ratchet, and a spring for retracting it, substantially as described.

4, A clutch of the class described, comprising the ratchet, a box or casing having a face parallel with said ratchet and having a notch in said face, the dog, the retractingspring connected with said dog, and the shaft and cam-faced arm for throwing the dog into engagement with the ratchet, substantially as described.

In testimony whereof I atiX my signature in the presence of two Witnesses.

WILLIAM L. BEALL. Witnesses:

G. W. BoR'rLEs, EARLE KNIGHT. 

